Champion's CT5 carbide tipped hole cutters are the perfect portable tool for cutting holes up to 3/16" in a variety of steels including stainless, aluminuim, and nonferrous materials. The CT5 is engineered for today's professional electricians, plumbers and mechanics. The new design improvements give 60% faster cutting speeds and 20% more holes. CT5's are an excellent cost effective alternative to bi-metal holesaws.